.container div[class^="col"]{
    margin-top: 20px;
}
#carousel-example-generic{
    margin-top: -20px;
    height:750px;
    overflow: hidden;
}
.item,.carousel-inner{
    height:100%;
}
.item{
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}
.row img{
    width:100%;
    
}
.navbar-bottom{
    margin-top: 20px;
    margin-bottom: 0;
}
.jumbotron{
    padding-top:10px;
    padding-bottom:10px;
}
.tc{
    text-align: center;
}
[class$="thumbnail"]:hover{
    transform: translateY(-20px);
    box-shadow: 0 0 10px 5px rgb(160, 160, 160);
    
}
[class$="thumbnail"]{
    transition:  all 1s;
}
.container .btn a{
 color:#fff;
}